670
FNCA52 TJSJ 080730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST FRI MAY 8 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-082000-
SOUTHEAST COASTAL PLAINS-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 0
TEMP (24H TREND) 90 (+3) 71 (-2) 90
RH % (24H TREND) 51 (-14) 89 (-2) 52
WIND 20FT/EARLY(MPH) E 14 E 12 E 17
WIND 20FT/LATE(MPH) SE 14 NE 9 E 19
MIXING HGT(FT-AGL/MSL)5450 6070
TRANSPORT WND (MPH) E 13 E 17
VENT RATE (KT-FT) 59950 91050
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-082000-
SOUTHERN HILLS-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 10
TEMP (24H TREND) 87 (+4) 68 (-2) 86
RH % (24H TREND) 56 (-14) 95 (0) 57
WIND 20FT/EARLY(MPH) E 11 E 11 E 13
WIND 20FT/LATE(MPH) SE 11 NE 10 E 14
MIXING HGT(FT-AGL/MSL)5960 6540
TRANSPORT WND (MPH) E 12 E 15
VENT RATE (KT-FT) 59600 85020
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-082000-
NORTH COASTAL PLAINS-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 10
TEMP (24H TREND) 90 (+2) 71 (-2) 89
RH % (24H TREND) 53 (-12) 94 (0) 55
WIND 20FT/EARLY(MPH) E 12 E 14 E 14
WIND 20FT/LATE(MPH) E 17 E 13 E 20
MIXING HGT(FT-AGL/MSL)4940 5480
TRANSPORT WND (MPH) E 13 E 17
VENT RATE (KT-FT) 54340 82200
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-082000-
NORTHERN HILLS-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 0 10
TEMP (24H TREND) 88 (+2) 69 (-2) 88
RH % (24H TREND) 54 (-11) 94 (-3) 57
WIND 20FT/EARLY(MPH) E 11 E 12 E 13
WIND 20FT/LATE(MPH) NE 13 E 11 E 18
MIXING HGT(FT-AGL/MSL)5870 6370
TRANSPORT WND (MPH) E 8 E 14
VENT RATE (KT-FT) 41090 76440
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-082000-
WEST COAST-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 90 (+1) 70 (-2) 91
RH % (24H TREND) 54 (-11) 95 (-4) 56
WIND 20FT/EARLY(MPH) E 12 E 14 E 13
WIND 20FT/LATE(MPH) E 12 E 13 E 14
MIXING HGT(FT-AGL/MSL)4960 5390
TRANSPORT WND (MPH) SE 7 E 9
VENT RATE (KT-FT) 29760 43120
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-082000-
EASTERN INTERIOR-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 20
TEMP (24H TREND) 88 (+3) 69 (-3) 87
RH % (24H TREND) 54 (-12) 95 (+2) 57
WIND 20FT/EARLY(MPH) E 11 E 11 E 12
WIND 20FT/LATE(MPH) E 11 E 11 E 14
MIXING HGT(FT-AGL/MSL)6490 7000
TRANSPORT WND (MPH) E 12 E 15
VENT RATE (KT-FT) 64900 91000
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-082000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 30
TEMP (24H TREND) 83 (+4) 67 (-3) 82
RH % (24H TREND) 59 (-15) 98 (+3) 64
WIND 20FT/EARLY(MPH) E 10 E 8 E 11
WIND 20FT/LATE(MPH) E 10 E 8 E 12
MIXING HGT(FT-AGL/MSL)4940 5000
TRANSPORT WND (MPH) E 13 E 16
VENT RATE (KT-FT) 54340 70000
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-082000-
CENTRAL MOUNTAIN RANGE-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 30
TEMP (24H TREND) 86 (+5) 65 (-3) 86
RH % (24H TREND) 56 (-14) 96 (-3) 58
WIND 20FT/EARLY(MPH) E 9 E 10 E 9
WIND 20FT/LATE(MPH) E 8 E 9 E 11
MIXING HGT(FT-AGL/MSL)7370 7300
TRANSPORT WND (MPH) NE 7 E 10
VENT RATE (KT-FT) 44220 65700
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-082000-
CAYEY MOUNTAIN RANGE-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 20
TEMP (24H TREND) 83 (+3) 68 (-2) 83
RH % (24H TREND) 58 (-15) 97 (0) 63
WIND 20FT/EARLY(MPH) E 10 E 8 E 11
WIND 20FT/LATE(MPH) E 10 NE 8 E 12
MIXING HGT(FT-AGL/MSL)5700 6060
TRANSPORT WND (MPH) E 13 E 16
VENT RATE (KT-FT) 62700 84840
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-082000-
VIEQUES-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 30
TEMP (24H TREND) 87 (+1) 74 (-2) 86
RH % (24H TREND) 56 (-7) 88 (+4) 59
WIND 20FT/EARLY(MPH) E 12 E 14 E 16
WIND 20FT/LATE(MPH) E 11 E 14 E 16
MIXING HGT(FT-AGL/MSL)4320 3830
TRANSPORT WND (MPH) E 14 E 20
VENT RATE (KT-FT) 51840 65110
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-082000-
CULEBRA-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 30
TEMP (24H TREND) 89 (+2) 75 (-2) 89
RH % (24H TREND) 56 (-8) 87 (+5) 57
WIND 20FT/EARLY(MPH) E 12 E 13 E 14
WIND 20FT/LATE(MPH) E 10 E 14 E 16
MIXING HGT(FT-AGL/MSL)4130 3770
TRANSPORT WND (MPH) E 14 E 20
VENT RATE (KT-FT) 49560 64090
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-082000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20
TEMP (24H TREND) 91 (+2) 71 (-2) 91
RH % (24H TREND) 50 (-11) 90 (-3) 51
WIND 20FT/EARLY(MPH) E 16 E 13 E 18
WIND 20FT/LATE(MPH) SE 18 E 12 SE 20
MIXING HGT(FT-AGL/MSL)5070 5730
TRANSPORT WND (MPH) E 14 E 15
VENT RATE (KT-FT) 60840 74490
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-082000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 20
TEMP (24H TREND) 86 (+1) 74 (-3) 86
RH % (24H TREND) 57 (-8) 88 (+7) 60
WIND 20FT/EARLY(MPH) E 12 E 14 E 16
WIND 20FT/LATE(MPH) E 11 E 16 E 16
MIXING HGT(FT-AGL/MSL)4300 3670
TRANSPORT WND (MPH) E 15 E 20
VENT RATE (KT-FT) 55900 62390
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-082000-
ST CROIX-
330 AM AST FRI MAY 8 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 10
TEMP (24H TREND) 87 (+1) 73 (-3) 87
RH % (24H TREND) 59 (-7) 89 (+4) 60
WIND 20FT/EARLY(MPH) E 12 E 14 E 16
WIND 20FT/LATE(MPH) E 12 E 16 E 16
MIXING HGT(FT-AGL/MSL)4850 4780
TRANSPORT WND (MPH) E 15 E 20
VENT RATE (KT-FT) 63050 81260
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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